Error Lost Item 10 000Dnp In Sever Hang Rong

I am a player in sever Hang Rong , Vietnam , 10 000cc I loaded my account and buy items 10 000dnp , occurred " unknown error " and the connection was lost, I go back and lost cc but not see item 10 000dnp , with page ad in the Vietnam sever proved to me , Cherrycredits resolved soon . Thank you very much.